Local Group of Galaxies stellar streams
Taken by Giuseppe Donatiello on January 17, 2016 @
Oria (Brindisi), Italy
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Date Taken: 2016:01:10 22:25:01
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Details:
Local Group of Galaxies stellar streams
Credit: Giuseppe Donatiello
A rare image. It is the result of a complex elaboration that highlights the stellar streams in the Andromeda and Triangulum galaxies. A stellar stream is an association of stars orbiting a galaxy that was once a globular cluster or dwarf galaxy that has now been torn apart and stretched out along its orbit by tidal forces.
Only about a dozen stellar streams have been named or studied in detail. Being a phenomena which only occurs on a galactic scale, most stellar streams are too faint and distant to study very thoroughly.
Photographer's website:
http://https://www.flickr.com/photos/133259498@N05/
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